Adding new git entries and .svnignore.

Discovery/Web-Content/common.txt

@@ -5,7 +5,20 @@
 .cvs
 .cvsignore
 .forward
+.git
+.git-rewrite
 .git/HEAD
+.git/config
+.git/index
+.git/logs/
+.git_release
+.gitattributes
+.gitconfig
+.gitignore
+.gitk
+.gitkeep
+.gitmodules
+.gitreview
 .history
 .hta
 .htaccess
@@ -22,6 +35,7 @@
 .subversion
 .svn
 .svn/entries
+.svnignore
 .swf
 .web
 .well-known/acme-challenge